A preset graph feature, With the X-axis and Y-axis being preset and with the ability to be enlarged and moved around would be amazing, it would also help if there was a choice of two graphs, one with four quadrants, and one with only the top right (positive x and y).
I'm an economics and maths student and I'm constantly using graphs, however they are difficult to create. I also don't use the grid notes because they are not nice to write notes on.